Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 540. Diamesinae 16

540a. Exuviae less than 8mm long. Apical tubercle of anal lobes usually minutely toothed or scaled; if smooth, anterior dorsal seta of thorax many branched.

Step 541. Diamesinae 17 Lappodiamesa

540b. Exuviae usually more than 8mm long. Apical tubercle of anal lobes smooth, at most the lobe itself scaled near the tubercle. Dorsal setae of thorax simple.

Step 547. Diamesinae 23 Pseudodiamesa
Decision path